﻿/* =========================================================
 * bootstrap-modal.js v2.1.1
 * http://twitter.github.com/bootstrap/javascript.html#modals
 * =========================================================
 * Copyright 2012 Twitter, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ========================================================= */


!function ($) {

    "use strict"; // jshint ;_;


    /* MODAL CLASS DEFINITION
     * ====================== */

    var Modal = function (element, options) {
        this.options = options
        this.$element = $(element)
          .delegate('[data-dismiss="modal"]', 'click.dismiss.modal', $.proxy(this.hide, this))
        this.options.remote && this.$element.find('.modal-body').load(this.options.remote)
    }

    Modal.prototype = {

        constructor: Modal

      , toggle: function () {
          return this[!this.isShown ? 'show' : 'hide']()
      }

      , show: function () {
          var that = this
            , e = $.Event('show')

          this.$element.trigger(e)

          if (this.isShown || e.isDefaultPrevented()) return

          $('body').addClass('modal-open')

          this.isShown = true

          this.escape()

          this.backdrop(function () {
              var transition = $.support.transition && that.$element.hasClass('fade')

              if (!that.$element.parent().length) {
                  that.$element.appendTo(document.body) //don't move modals dom position
              }

              that.$element
                .show()

              if (transition) {
                  that.$element[0].offsetWidth // force reflow
              }

              that.$element
                .addClass('in')
                .attr('aria-hidden', false)
                .focus()

              that.enforceFocus()

              transition ?
                that.$element.one($.support.transition.end, function () { that.$element.trigger('shown') }) :
                that.$element.trigger('shown')

          })
      }

      , hide: function (e) {
          e && e.preventDefault()

          var that = this

          e = $.Event('hide')

          this.$element.trigger(e)

          if (!this.isShown || e.isDefaultPrevented()) return

          this.isShown = false

          $('body').removeClass('modal-open')

          this.escape()

          $(document).off('focusin.modal')

          this.$element
            .removeClass('in')
            .attr('aria-hidden', true)

          $.support.transition && this.$element.hasClass('fade') ?
            this.hideWithTransition() :
            this.hideModal()
      }

      , enforceFocus: function () {
          var that = this
          $(document).on('focusin.modal', function (e) {
              if (that.$element[0] !== e.target && !that.$element.has(e.target).length) {
                  that.$element.focus()
              }
          })
      }

      , escape: function () {
          var that = this
          if (this.isShown && this.options.keyboard) {
              this.$element.on('keyup.dismiss.modal', function (e) {
                  e.which == 27 && that.hide()
              })
          } else if (!this.isShown) {
              this.$element.off('keyup.dismiss.modal')
          }
      }

      , hideWithTransition: function () {
          var that = this
            , timeout = setTimeout(function () {
                that.$element.off($.support.transition.end)
                that.hideModal()
            }, 500)

          this.$element.one($.support.transition.end, function () {
              clearTimeout(timeout)
              that.hideModal()
          })
      }

      , hideModal: function (that) {
          this.$element
            .hide()
            .trigger('hidden')

          this.backdrop()
      }

      , removeBackdrop: function () {
          this.$backdrop.remove()
          this.$backdrop = null
      }

      , backdrop: function (callback) {
          var that = this
            , animate = this.$element.hasClass('fade') ? 'fade' : ''

          if (this.isShown && this.options.backdrop) {
              var doAnimate = $.support.transition && animate

              this.$backdrop = $('<div class="modal-backdrop ' + animate + '" />')
                .appendTo(document.body)

              if (this.options.backdrop != 'static') {
                  this.$backdrop.click($.proxy(this.hide, this))
              }

              if (doAnimate) this.$backdrop[0].offsetWidth // force reflow

              this.$backdrop.addClass('in')

              doAnimate ?
                this.$backdrop.one($.support.transition.end, callback) :
                callback()

          } else if (!this.isShown && this.$backdrop) {
              this.$backdrop.removeClass('in')

              $.support.transition && this.$element.hasClass('fade') ?
                this.$backdrop.one($.support.transition.end, $.proxy(this.removeBackdrop, this)) :
                this.removeBackdrop()

          } else if (callback) {
              callback()
          }
      }
    }


    /* MODAL PLUGIN DEFINITION
     * ======================= */

    $.fn.modal = function (option) {
        return this.each(function () {
            var $this = $(this)
              , data = $this.data('modal')
              , options = $.extend({}, $.fn.modal.defaults, $this.data(), typeof option == 'object' && option)
            if (!data) $this.data('modal', (data = new Modal(this, options)))
            if (typeof option == 'string') data[option]()
            else if (options.show) data.show()
        })
    }

    $.fn.modal.defaults = {
        backdrop: true
      , keyboard: true
      , show: true
    }

    $.fn.modal.Constructor = Modal


    /* MODAL DATA-API
     * ============== */

    $(function () {
        $('body').on('click.modal.data-api', '[data-toggle="modal"]', function (e) {
            var $this = $(this)
              , href = $this.attr('href')
              , $target = $($this.attr('data-target') || (href && href.replace(/.*(?=#[^\s]+$)/, ''))) //strip for ie7
              , option = $target.data('modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data())

            e.preventDefault()

            $target
              .modal(option)
              .one('hide', function () {
                  $this.focus()
              })
        })
    })

}(window.jQuery);